Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

Every equinox this Maya pyramid puts on a spooky ancient light show.

These azure waters were thought to lead to the Mayan Underworld.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

An Aztec snake god has taken the material form of an apartment complex.

A gargantuan crystal kingdom.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

One of the largest ancient geoglyphs in the world is a tall desert god used for predicting the weather.

This large round boulder is said to emit spiritual power, but it may just be magnets.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

One of Chile's most active volcanoes is riddled with beautiful caves.

The largest stone moai on Rapa Nui.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Art school in the Amazon: Drugs, nature and sustainable agriculture.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

Tucked behind the Institute of Neurological Science down a decrepit street resides the largest display of human brains in Latin America.

Bolivia's needle-like rock formations.

Museum dedicated to the sacred leaf of the Andes.

A valley of unique erosion patterns lends to a view like nothing on Earth.

Death road of Bolivia.

This devil-dancing ceremony now celebrates a miraculous image of the Virgin Mary that appeared to a modern-day Robin Hood in a mineshaft.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.